The US and South Korea are reporting that North Korea is believed to have lost one of its submarines. The vessel was operating off the coast of North Korea when it disappeared, and the North Korean ...

A research submarine operating under the Antarctic ice has mysteriously disappeared after detecting what it described as “hidden structures” beneath the frozen surface. The incident coincides with new ...

Yet another submarine has gone missing — though this time, it wasn’t headed to visit the wreck of the Titanic at the bottom of the Atlantic Ocean. This time, a vessel with 45 Russian tourists on board ...

The Russian Pacific Fleet, with the support of veteran organizations of submariners, discovered a sunken "Malyutka"-class submarine, identified as "M-49," in the Peter the Great Bay where it went ...

A submarine used in World War II that vanished with the lives of 80 service members has been found, a discovery team announced Sunday. The U.S. Navy submarine was found in June 50 nautical miles south ...